Trace the hand in pencil. With a marker, draw a straight line until you get to the hand. Then make a curve from one line to the next, then continue the straight line. Hope that makes since. It's easier to show than to explain.

Sarah in the woods (and monyart):LOVE the optical illusion hand art, but I don't understand how it's done. I'm sure I'm being dense. Is the paper placed over the hand? The hand isn't on top of the paper and traced the old-fashioned way -- around the fingers onto the paper beneath. I'm stumped, but really want to do this. Any further instruction would be appreciated! Thx

lay your hand on the paper and trace it in pencil. Using a marker, start drawing a straight line from the edge of the paper until you get to the pencil line. Then, without picking up your marker, draw an arc to the next pencil line. Then continue your marker line along the same straight line you started. Repeat until the paper is filled. If that doesn't make sense, I'll do a tutorial.

I tried your project out this weekend... with not as cute results. It is a fun one, though! I linked up to you as the inspiration at my craftfail post: http://craftfail.com/2012/06/crazy-optical-illusion-hand-drawing-nailed-it/#

i can't remember who made which pictures in the photos above. We had ages 4-11. We had to help some more than others, and it didn't necessarily depend on age. I suggest using thick markers and a ruler.

LOVE this idea!! I'm gonna do this with my great niece soon!! Thanks so much for this wonderful fun idea to do with kids!! I found a video on how to do this if someone needs to see how this is done. Here is the link:www.youtube.com/watch?v=6TCKUalhvYI-- Roberta